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558
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Media Type
1
collections
529
texts
15
movies
12
audio
1
images
Availability
556
Always Available
2
Available to Borrow
Topics & Subjects
286
geological survey
198
geological
131
rocks
114
feet
104
Geology
82
lake
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Collection
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Creator
77
newton horace winchell
38
geological survey (u.s.)
35
illinois state geological survey
34
geological survey of canada
33
defense technical information center
14
brewer, william henry,1828-1910,author
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Language
537
English
1
Indonesian
1
undetermined
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